Vermonts Sidehill Farm makes homemade jam the oldfashioned way. Also check out our Vermont Maple Products and Gift Baskets. Try this rhubarb cardamom shortbread bars recipe for dessert. The tart rhubarb is sandwiched between buttery layers of cardamomperfumed shortbread. Deliciously tangy sweet rhubarb bars with a sweet shortbread crust Pin For Later Last week I officially declared spring was here. On the way to work I would admire. Instructions. 1. Preheat oven to 3. F and grease 9 in. Prepare crust by combining the flour and sugar in a bowl. Cut in the butter with pastry blender or fork until mixture resembles coarse crumbs. Lightly press into prepared pan and bake for 1. While crust is baking, prepare filling. Combine sugar, nutmeg, and flour in a large bowl. Whisk in the cream and eggs, then gently fold in the rhubarb. Pour over the crust and bake for 4. Cool completely. 4. Prepare topping by beating cream cheese, sugar, and vanilla until smooth then fold in the whipped cream. Spread the topping over the top and cover and chill. Cut into bars before serving. Store bars in the refrigerator. Details. Prep time 2. Cook time 4. 5 mins Total time 1 hour 1. Recipe adapted from Taste of Home.